Wheel-puller.



1. NEUMAIERI WHEEL FULLER. APPLICATION FILED MINE 9. 1917.

13,258,699. Patented Man-12, 191s.

. pnyenfwr:

JOHN NEUMAIER, OF ROCHESTER, NEW YORK, ASSIGNOR TO NORTH EAST ELECTRIC rare COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

WHEEL-PULLER. N T

Specification of Letters Patent.

Patented Mar. 12, me.

To. all whom it may concern:

Be it known that I, JOHN NEUMA E a subject of the GermanEmperor, residing at Rochester, in the county of Monroe and State-of New York, have invented certain new and useful Improvements in Wheel- Pullers; and I do hereby declare the following to be a full, clear, and exact description .of the invention, such as will enable others skilled in the art to which itappertains to make and use the same;

Th1s invention relates to a device for removing a gear-wheel, pulley or other part from a shaft on which it is mounted.- In devices for the purpose in questionit 18 common to employ a screw, operating through'a yoke and adapted to engage the end of a shaft, while two hook-shaped memf; hers, attached to'the end of the yoke, .en-'

gage the rim of the wheel or part which is to be pulled from the shaft, In such an arrangement, where intended for use upon wheels of differentdiameters, it is necessary to provide for adjustment of the hooks toward and from each other.-

The object of the present invention is to produce a wheel-puller, ofthe type in question, in which simple and convenient means are provided for adjusting the hooks toward and from each other, and by which, in particular, the hooks are maintained always at equal distances from'the screw, so as to engage evenly the rim of the wheel which is to be pulled, and thus to prevent any unequal action upon the wheel which might tend to distort or cramp it. I

- To the foregoing end the invention resides in the construction and arrangement of parts hereinafter described, as it is defined in the appended claims.

In the accompanying drawings Figure 1 is an end-elevation of a wheel-puller embodying the present invention, and Figs. 2 and 3 are side-elevations of the same.

The invention is illustrated as embodied in a wheel-puller having the usual hookshaped members 5. The shanks 6 of the hooks pass through perforations. in two slide-blocks 7, and are threaded to receive nuts 8 which rest against the slide-blocks.

The blocks 7 are arranged to slide toward and from each other in slots 9 extending inwardly from the ends of the yoke 10; The screw'll, by which'the force is applied to draw the wheel from the shaft, i s-thre'aded through a. central perforation in the yoke,

and is adapted to engage the end of the shaft, as shown in dot-and-dash line in Fig. 2. The screw'is provided, at its outer end, with a squared and perforated head 12, whichfii'sladapted to be turned by a wrench or other suitable tool.

The invention resides particularly in the means employed forcontrolling the position of the slide-blocks 7 in the slots 9. For this purpose a sliding member 13 is mounted loosely upon the screw 11', this member having a smooth perforation to receive the screw;- Each of the blocks-7 isconnected with the slidingmember 13 by a link 14,

and since these links are of equal length, it-

results that whatever the position of the sliding member 13 upon the screw, the two blocks? will necessarily be held at equal distances from the screw. Accordingly, the hooks 5 may be moved toward or from each other by sliding the member 13 along the screw, while. at the same time the hooks are held accurately concentric with the screw regardless of such adjustment.

The invention is not limited to the embodiment thereof hereinbefore described and illustrated in the accompanying drawings,

"but it may be embodied in various other forms within the nature of the invention as it is defined in the following claims. The invention claimed is: a

1. A wheel-puller having, in combination,

a screw; a yoke in which the screw is inounted; slides movable toward and from each other on the yoke; hooks mounted on the slides; and means for centering theslides with respect to the screw in all positions of the slides.

2. A wheel-puller having, in combination, a screw; a yoke in which the screw is mounted; slides movable toward and from each other on the yoke; hooks mounted on the slides; and means for moving the'slides simultaneously and centering them with respect to the screw.

3. A wheel-puller having, in combination a screw; a plurality of hooks; a yoke cona screw; a yoke in which the screw is mountnecting the'screW and the hooks; and means, ed; slides movable toward and from each I for moving the hooks relatively to the yoke, other on the yoke; hooks mounted on the 10 comprising a slide-member loosely guided slides; a slide-member guided loosely on the on the screw, and links connecting said "screw; and links connecting said member member with the several hooks. V with said slides, respectively.

' 4. A Wheel-puller having, combination, JUHN NEUMAIER. 

